Andrew Walker
2020-Aug-24 16:48 UTC
[Samba] core dump from samba-tool when chnging user password
On Mon, Aug 24, 2020 at 11:57 AM James B. Byrne via samba < samba at lists.samba.org> wrote:> > > On Mon, August 24, 2020 11:17, James B. Byrne wrote: > > > > On the other hand, the errors I report are likely solvable should > someone with > > the ability to do so take note of them, so I am reporting this one. > What I > > want to know is whether this should be reported as a bug or whether this > > problem has been solved in a more recent version of Samba. I am not > prepared > > to move from 4.10.15 until after the complete transition from the > existing > > domain and DC is complete. But, if it has been fixed then that would be > useful > > to know. > > > > As it turns out this is not the first report of this problem. It is > evidently > related to the talloc port in FreeBSD and may, or may not, have to do with > jails. There are open bug reports respecting this on the FreeBSD bugzilla > tracking system. > >Out of curiosity, can you provide a link to one of the FreeBSD bug reports? I believe the talloc port in FreeBSD uses arc4random() during talloc_init() to calculate magic.
James B. Byrne
2020-Aug-24 16:52 UTC
[Samba] core dump from samba-tool when chnging user password
On Mon, August 24, 2020 12:48, Andrew Walker wrote:> > Out of curiosity, can you provide a link to one of the FreeBSD bug reports? > I believe the talloc port in FreeBSD uses arc4random() during talloc_init() > to calculate magic. >https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=245707 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=248883 -- *** e-Mail is NOT a SECURE channel *** Do NOT transmit sensitive data via e-Mail Unencrypted messages have no legal claim to privacy Do NOT open attachments nor follow links sent by e-Mail James B. Byrne mailto:ByrneJB at Harte-Lyne.ca Harte & Lyne Limited http://www.harte-lyne.ca 9 Brockley Drive vox: +1 905 561 1241 Hamilton, Ontario fax: +1 905 561 0757 Canada L8E 3C3
Jeremy Allison
2020-Aug-24 16:58 UTC
[Samba] core dump from samba-tool when chnging user password
On Mon, Aug 24, 2020 at 12:52:58PM -0400, James B. Byrne via samba wrote:> > > On Mon, August 24, 2020 12:48, Andrew Walker wrote: > > > > Out of curiosity, can you provide a link to one of the FreeBSD bug reports? > > I believe the talloc port in FreeBSD uses arc4random() during talloc_init() > > to calculate magic. > > > > https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=245707 > https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=248883valgrind should be able to help find #248883 I think.
Andrew Bartlett
2020-Aug-25 02:19 UTC
[Samba] core dump from samba-tool when chnging user password
On Mon, 2020-08-24 at 12:48 -0400, Andrew Walker via samba wrote:> On Mon, Aug 24, 2020 at 11:57 AM James B. Byrne via samba < > samba at lists.samba.org> wrote: > > > > > > > On Mon, August 24, 2020 11:17, James B. Byrne wrote: > > > > > > On the other hand, the errors I report are likely solvable should > > > > someone with > > > the ability to do so take note of them, so I am reporting this > > > one. > > > > What I > > > want to know is whether this should be reported as a bug or > > > whether this > > > problem has been solved in a more recent version of Samba. I am > > > not > > > > prepared > > > to move from 4.10.15 until after the complete transition from the > > > > existing > > > domain and DC is complete. But, if it has been fixed then that > > > would be > > > > useful > > > to know. > > > > > > > As it turns out this is not the first report of this problem. It > > is > > evidently > > related to the talloc port in FreeBSD and may, or may not, have to > > do with > > jails. There are open bug reports respecting this on the FreeBSD > > bugzilla > > tracking system. > > > > > > Out of curiosity, can you provide a link to one of the FreeBSD bug > reports? > I believe the talloc port in FreeBSD uses arc4random() during > talloc_init() > to calculate magic.A bit of an aside, but it would be incredibly awesome if the FreeBSD port could adopt the same policy as, eg, Debian and not ship any patches that are not upstream. We do consider such patches, with justification, when submitted by or on behalf of their authors. See for example this recent MR submitted by Debian: https://gitlab.com/samba-team/samba/-/merge_requests/1420 It makes assessing issues like this much easier. Thanks, Andrew Bartlett -- Andrew Bartlett https://samba.org/~abartlet/ Authentication Developer, Samba Team https://samba.org Samba Developer, Catalyst IT https://catalyst.net.nz/services/samba
James B. Byrne
2020-Aug-25 17:17 UTC
[Samba] core dump from samba-tool when chnging user password
On Mon, August 24, 2020 22:19, Andrew Bartlett wrote:> > A bit of an aside, but it would be incredibly awesome if the FreeBSD > port could adopt the same policy as, eg, Debian and not ship any > patches that are not upstream. > > We do consider such patches, with justification, when submitted by or > on behalf of their authors. See for example this recent MR submitted > by Debian: https://gitlab.com/samba-team/samba/-/merge_requests/1420 > > It makes assessing issues like this much easier. > > Thanks, > > Andrew Bartlett >I believe that Timur has indeed submitted patches of this nature. I recall reading that they were deemed unacceptable because of some security related difficulty in namespacing attributable to ZFS or the kernel in FreeBSd. This sort of stuff is out of my realm and I am going on memory from a comment that I read in a FreeBSD samba bug report some time ago. I am sure that a direct communication with Timur will obtain the precise details. -- *** e-Mail is NOT a SECURE channel *** Do NOT transmit sensitive data via e-Mail Unencrypted messages have no legal claim to privacy Do NOT open attachments nor follow links sent by e-Mail James B. Byrne mailto:ByrneJB at Harte-Lyne.ca Harte & Lyne Limited http://www.harte-lyne.ca 9 Brockley Drive vox: +1 905 561 1241 Hamilton, Ontario fax: +1 905 561 0757 Canada L8E 3C3